Aug. 2018...On my 550th root flare excavation and counting. Now Nurseries purposely smothering original root systems, by burying field growing trees under yards of added soil grade. To artificially initiate production for copious amounts of emergency adventitious feeder root growth. In order to assure after permanently installed, that new stock survives next three years of service. Before prematurely failing, and require replacement. Realize was pretty stupid of me to think todays nurseries would be interested in long term research, to supply feedback warning of certain cultivars later developed problems. Some of poorest turned out to be like cheap manufactured car model, where some 35 years later very few still exist. One problem is how individual cultivars selected for beauty trates, not survivability or good branching habit.